Wagon-brake.



PATENTED APR. 17. 1906.

F. FISHER.

WAGON BRAKE.

APPLICATION fILBD.ocT.13.19o5.

PIII.. u Slim `J/f//l//l/f) t MNE unicaen salaries Parana onirica FREDFISHER, OF IRONTON, MISSOURI, ASSIGNOR TO CHARLES MADLINGER, OF IRONTON,MISSOURI.

WAGON-BRAKE..

Specification of Letters Patent.

Patented April 17, 1906.

Application filed October 13,1905. Serial No. 282,621.

To all whom, it may concern.-

Beit known that I, FRED FISHER, acitizen of the United States, residingat Ironton, in the county of Iron and State of Missouri, have inventedcertain new and useful Improvements in Wagon-Brakes, of which thefollowing is a full, clear, and exact description, reference being hadto the accompanying drawings, forming a part hereof.

My invention has relation to improvements in wagon-brakes and itconsists in the novel construction and arrangement ofparts more fullyset forth in the speciiication and pointed out in the claims.

In the drawings, Figure 1 is a bottom plan view of a wagon having mybrake attached thereto. Fig. 2 is a top plan of the same. Fig. 3 is atop plan of the central portion of the front truck, showing theapplication of the invention. Fig. 4 is a vertical sectional detail onthe line 4 4 of Fig. 3, and Fig. 5 is a horizontal section on line 5 5of Fig. 4.

The object of my invention is to equip a wagon with a brake which shallbe automatically applied (preferably) to the wheels of the rear truckthe moment the draft on the doubletree shall have slackened for anyreason, as where, for example, the animals are descending a hill orwhenever the vehicle comes to a stop.

A further object is to provide means for controlling the brakes directlyby the driver in the event it is not desirable that the same be appliedunder the circumstances referred to.

In detail the invention may be described as follows:

Referring to the drawings, T represents the front truck of a wagon, Tthe rear truck, and C the couplingole. .Mounted on top of the rear truckan having a reciprocating movement parallel to the coupling-pole is abrake-beam 1, having terminal brake-shoes 2 2 for engaging the tire ofthe rear wheels WV. The brake-beam passes under a pair of straps 3,secured, respectively, to the truck T and to a transverse block 4,secured to or forming a part of the truck. In its reciprocations thebrake-beam is guided by stems 5 5, which pass loosely through the block4. Under normal conditions-that is, when the wagon is standing still andthe draft-animals are detachedthe brake-shoes are firmly set against thewheels W by the contracting springs 6 6, coupled, respectively, to thebrake-beam and to the rear member of the truck T. Pivoted beneath theblock 4 to a bracket or arm 7, secured to the bottom of the rear truck,is one end of a lever 8, which at an intermediate point is coupled tothe brake-beam by the links 9 9, the opposite end of the lever beingpivotally connected to the rear section 10 of a pull-bar, the frontsection 10 of said pull-bar being pivotally coupled at its front end tothe doubletree 12. To allow for the proper extension of the wagon orseparation of the trucks, the section 10 overlaps the section 10suHiciently, so that the wagon may be lengthened to any desirabledegree. For this purpose the section 10 is provided with a series ofopenings 1 3, through any one of which and through an opening (notshown) formed in the section 10 a screw-bolt can be passed andsubsequently fastened in position by a nut 14. This arrangement forms apivotal connection between the sections -10 10, allowing the front truckto freely oscillate about the kingpin 15. The pin-bolt 16, which couplesthe doubletree 12 to the section 10 of the pullbar, operates in alongitudinally-elongated slot 17 in the front truck, this constructionnot only permitting the 'doubletree to oscillate about the bolt 16, butto be drawn forward the length of the slot 17. I/Vhen therefore thedraft-animals are attached to the doubletree, (or more properly to theswingletrees not here shown, but usually carried by the doubletree,) themoment they draw on the doubletree the latter will be moved forwardlyalong the slot 17, the draft on the bolt 16 exerting itself on thepull-bars l() 10, which in turn tilt the lever 8 sufficiently to drawthe brake-beam away from the wheels W, and thus release the brakes, (seedotted position of the parts in Fig. 1,) so that as long as the animalspull on the doubletree the brakes will be released. The tension of thesprings is adjusted by the nuts 18 at the screw-threaded ends of theeyebolts 19, to which the adjacent ends of the springs are attached.

Under some circumstances it is desirable to hold the brakes releasedeven though the animals are not drawing on the doubletree or even whenthe animals are detached from the vehicle altogether. For this purpose Iprovide a lever 20, pivoted at the base to IOO the front truck, thelever passing through an elongated slot 21, terminating at its forwardend in an offset or shoulder 22, formed in an angle-plate or bracket 23,secured to 5 the front truck, the doubletree passing under thehorizontal arm or member of said angle-plate and being guided thereby.The pin-bolt 16 passes through the elongated Slot 17 of saidangle-plate, which slot is directly over the slot 17 of the truck. Tothe lever 20 at a point opposite the doubletree is secured a brace orshoe 24, which bears against the adjacent face of the doubletree. Thedriver by forcing or oscillating the lever 2() forward in the directionshown by dotted position in Fig. 4 forces the shoe 24 against thedoubletree, forcing the latter forward and disengaging the brakes in amanner similar to their disengagement by the draft of the animals. Inthis forward oscillation the lever comes .opposite the shoulder 22 whenthe driver by a slight lateral jerk may bring the lever to rest againstsaid shoulder, thus preventing the return of the lever to its originalposition and leaving the brakes released for any time the driverdesires. Thus the brakes may be controlled by the driver even should thehorses be altogether detached from the wagon.

It is to be understood that the term doubletree as used in the claimscontemplates a swingletree on vehicles which do not use a i doubletree,as I do not wish to limit the application of the invention todoubletrees specifically.

Having described my invention, what I claim isl. In combination with anoscillating dou bletree having a movement lengthwise of the vehicle, alever pivoted to the rear thereof, a brace or shoe carried by the leverabove its pivotal point and adapted to be forced against the doubletree,an angle-plate having a recess or slot for the passage of the lever, anoffset or shoulder in the slot for locking the lever in position, abrake-beam, and connections between the doubletree and brake-beam,substantially as set forth.

2. In combination with a reciprocating brake-beam, means for guiding thesame, springs for forcing the beam against the wheels of thewagon-truck, a lever pivoted at one end below the truck, linksconnecting an intermediate point of said lever to the brakebeam, apull-bar leading from the opposite end of the lever, and a doubletreemovable lengthwise of the wagon coupled to the front end of thepull-bar, the parts operating substantially as, and for the purpose setforth.

In testimony whereof I affix my signature in presence of two witnesses.

FRED FISHER.

lVitnesses:

` C. l?. DAMRON. A. S. PRINCE.

